Bench plane with adjustable bit carrier



1951 c. DE LA SOURCE 2,572,599

BENCH PLANE WITH ADJUSTABLE BIT CARRIER Filed Oct. 17, 1946 CHARLES de \o. Source lNVENTofE WM. m A 1 V Patented Oct. 23, 1951 BENCH PLANE WITH ADJUSTABLE BIT CARRIER Charles de la Source, Paris, France, assignor to Les Flls de Peugeot Freres, Valentigney (Doubs) France, a French company Application October 17, 1946, Serial No. 703,911 In France December 5, 1945 2 Claims. (Cl. 14515) The invention relates to bench planes, rabbet planes and like tools used for planing wood or any other material.

One object of the invention is to provide a plane so constructed that it will be possible to adjust the width of the shaving channel or mouth without having recourse to any tool nor dismounting the iron.

According to the invention the bit carrier is resiliently pressed in an adjustable position upon the plane stock and positively held thereon, a nut or like member being used to simultaneously press the bit carrier and to hold it in position and to clamp the cam or like member used for adjusting the position of the bit carrier. Other features of the invention will appear from the following description. I

In the accompanying drawing:

Fig. 1 is a longitudinal sectional view of a plane according to the invention on the line I-I of Fig. 3.

Fig. 2 is a transverse sectional view on the line 22 of Fig. 1 and Fig. 3 is a sectional view on the line 3-3 of Fig. 1.

Referring to the drawing, I designates the plane stock having a U-shaped cross section and 2 denotes the plane iron or bit secured to a carrier 3 by means of a clamping plate 4, a pin 5 and a nut 6.

A cross pin I forming an abutment member extends horizontally between the two branches of the stock.

The bit carrier 3 is pivotally mounted on a U- shaped lever or slide comprising two lateral branches 8, 8a connected to each other at the rear by a horizontal bridge part 82), the bit carrier being supported by two pins 9 on the branches 8, 8a.

A cam I0 provided with an inclined cam-slot Inc and an operating tongue IOb is pivotally connected by a pin II with the bit carrier 3. A vertical screwthreaded pin I2 is riveted to the plane stock and extends through said cam slot and through the bridge 81) of the slide 8, 8a. An operating knob or nut I3 is screwed onto the pin I2 and bears by an annular shoulder upon the upper face of bridge member 8b.

In a modification the pin I2 and nut I3 may be replaced by any other desired clamping means such as a cam.

When the nut I3 is screwed down the bit carrier 3 is pressed against the sole of the plane stock through the medium of the lever 8, 8a, said pin I.

At the same time, the nut I3 holds the cam member ID in the angular position desired by pressing the same against the sole of the plane stock whereby the bit carrier 3 itself is surely held in position through the medium of the pivot or pin I I. When the plane is used, the axial strain due to the pressure of the work against the bit edge is thus firmly supported by the pin I2. The slide 8, 8a, 8b is made of steel and the bridge part 81) has thus a certain resiliency in a vertical direction. In this manner, the nut I3 is adapted to press downwardly upon the bridge member 8b so as to press upwardly the left hand end of the slide against the cross pin I, while at the same time pressing the cam member I0 upon the sole of the plane stock. The bridge 8b being resilient has also for its efiect to act as a nut lock for the nut I3.

In order to adjust the width I of the shaving channel the support 3 must be so shifted in the longitudinal direction of the stock that the cutting edge a will be moved towards or away from the front edge b of the channel. For this purpose the nut I3 is slightly unscrewed so as to partially release the tension of the lever 8, 8a whereby the pressure of the bit carrier 3 on the plane stock is just sufllcient to temporarily hold the bit carrier in position.

The adjusting cam I0 is then rotated in the required direction by acting on the tongue Illb. In this movement the slotted part of the cam is shifted around the fixed pin I2 and the cam is thus displaced either forward or backward, the bit carrier 3 being carried along through the pin II.

The adjustment obtained may be ascertained in overturning the plane and following visually the displacement of the iron edge a on the lower face of the sole in relation to the front edge I) of the channel.

When the desired adjustment has been reached the nut I3 is screwed down again.

As appears from the preceding description, the adjusting operation can be made without using any tool, contrary to what may be experienced with most of the usual planes which necessitate the use of a screwdriver. Moreover the loosening of the bit carrier being effected from the rear, it is not necessary to take the iron apart, so that the adjustment of the iron proper on its carrier is not altered.

It will also be noted that the operation of the adjusting cam may be efiected with one hand and her on the plane stock for engagement with theends of said lateral parts, an adjusting member comprising a cam pivoted to the bit carrier andv having a cam slot, a threadedpin carried by the plane stock and engaging with said camslot, and

a nut in engagement with said pin, said'nut being adapted to press upon the cross part of the said slide and to clamp the cam in the adjusted position.

2. A bench plane comprising a plane stock, a bit carrier adjustably mounted on said plane stock, a resilient slide pivotally connected to said bit carrier, an abutment member carried by said plane stock and adapted to engage said slide at one end, a threaded pin secured to said plane stock and passing through said slide and a nut screwed on said pin and bearing on said slide at the other end.

CHARLES DE LA SOURCE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 536,746 Traut Apr. 2, 1895 2,371,946 Benn Mar. 20, 1945 

